607-60-3Relevant articles and documents
Novel long alkyl side chain benzo[a]phenoxazinium chlorides: synthesis, photophysical behaviour and DNA interaction
Alves, Carla M.A.,Naik, Sarala,Coutinho, Paulo J.G.,Gon?alves, M. Sameiro T.
, p. 10441 - 10452 (2009)
Several fluorescent benzo[a]phenoxazinium chlorides possessing a propyl-, octyl-, decyl-, dodecyl- or tetradecylamino at the 5-position of the heterocyclic moiety were efficiently synthesised. The absorption and emission maxima of all compounds lie in the
BENZOPHENOXAZINE DERIVATIVES FOR DIAGNOSIS OF NEOPLASIA OR INFECTION
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Paragraph 0063, (2019/10/29)
The present disclosure is related to the synthesis and applications of a benzo[a]phenoxazine. It displays good photophysical properties, such as high molar extinction coefficient, good fluorescence quantum yield and solubility in water. The present invent
N-(di)icosyl-substituted benzo[a]phenoxazinium chlorides: Synthesis and evaluation as near-infrared membrane probes
Naik, Sarala,Alves, Carla M. A.,Coutinho, Paulo J. G.,Goncalves, M. Sameiro T.
body text, p. 2491 - 2497 (2011/06/10)
Five benzo[a]phenoxazinium chlorides containing alkyl chains with twenty carbon atoms at the 5- or 9-positions of the tetracyclic ring were efficiently synthesised and characterised by UV/Vis and NIR spectroscopy. The absorption and emission maxima in ethanol occur in the range 627-641 nm and 645-676 nm, respectively, with quantum yields varying from 0.14 to 0.38. Preliminary photophysical studies with these fluorochromophores in zwitterionic [2,3-bis(palmitoyloxy)propyl-2-(trimethylammonio)ethyl phosphate, DPPC] and cationic (N,N-dimethyl-N-octadecyloctadecan-1-aminium bromide, DODAB) vesicles were carried out. The results showed that the new benzo[a]phenoxazinium derivatives are able to detect the gel to liquid-crystalline lipid phase transition through variations in either the extent of H-aggregation or in the acid-base equilibrium. Novel benzo[a]phenoxazinium chlorides possessing icosyl groups as substituents at the 5- or 9-positions of the tetracyclic ring were photophysically studied in both zwitterionic and cationic vesicles. The results revealed that these fluorochromophores are able to detect the gel to liquid-crystalline lipid phase transition through variations either in the extent of H-aggregation or in an acid-base equilibrium. Copyright